Usage Note
Diez is invariable for gender and is the base of many derived words: dieciséis (sixteen), décimo (tenth), decena (a group of ten). The -z of diez becomes -c in the ordinal décimo and related forms, following the standard z→c-before-e pattern.
Examples
"El examen tiene diez preguntas."
Natural Translation
The exam has ten questions.
Related Words
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